Water-heater.



1- FERRls.

WATER HEATER. APPLICATION HLED 13.10.1915.

Lm L92?. Patented Jan. 9,1917.

fm1 n m M,

INVENTOR,

WITNESSES, )if A l ga/zd WM BY/w PB W l ATTORNEY JOHN A. FEBRIS, OFCHICAGO, ILLINOIS.

WATER-HEATER.

Specication of Letters Patent.

Patented Jan. 9, 1917.

Application led February 10, 1916. Serial No. 77,402.

To all whom t may concern Be it known that I, JOHN ARTHUR FERRrs, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented a new and useful Tater-Heater, ofwhich the following is a specification.

My invention relates to a water heater for household or domesticservice, and my improvements consist in a. novel method ot'construction, and means of causing a rapid increase in the temperatureof the water held by the pipe coils and in the water bowl of the saidwater heater.

Figure 1, shows an interior view of my improved water heater. Fig. 2,shows a. plan view of different parts'taken beneath the line y, c, ofFig. 1. Fig. 3, shows a plan View taken beneath the line m, g, ofFig. 1. Figs. 4 and 5 are detail views of the bush-cap that connects theupper ends of the pipe coils to the water bowl of the water heater.

Similar letters of reference refer to similar parts throughout theseveral views.

The outer casing B of the water heater is of sheet metal preferably of acylindrical form and near the lower end of the said casing is located aperforated plate b, of sheet metal. Resting upon the perforated plate b,is shown an electric stove C. Immediately above the stove C is locatedseveral pipe coils 1, 2, 3, and the upper ends of the said pipe coilsconnect with the bottom of the water bowl D, centrally suspended withinthe casing B. The bottom of the bowl D is upset, so as to form severalsemi-spherical protuberances d, projecting inward, and at the center ofthe bottom of the bowl is a similar protuberance cl projecting downwardfor connection with a bush-cap 4 attached to the pipe coils. The lowerends of the pipe coils 1, 2, 3, also connect with a bush-cap 5 connectedto the faucet G, so that water can be withdrawn from the pipe coils 1,2, 3, and the bowl D connected with the said pipe coils. Surrounding thepipe coils l, 2, 3, andthe electric stove C is a conical sheet metaljacket F, and joining with the contracted end of the jacket F is a cupshaped disk f of sheet meta-l, of a diameter equal to the inner diameterof the casing B. The conical sheet metal jacket F is surrounded withsheet asbestos h or other suitable material to prevent outwardly heatradiation through the sheet metal jacket. The cup shaped disk f is alsosurrounded with a jacket of sheet asbestos k for a similar purpose. Thesheet metal conical jacket F is inclined inheated air ascending from theelectric stove C upon the spiral pipe coils 1, 2, 3, and also tocentrally focus the heated air upon the bottom of the bowl D, previousto the heated air surrounding the shell, of the bowl D. The stove C, asrepresented in the drawings, is of an electric type, and a gas or oi]stove can be used with similar results, in connection with the waterheater.

The object of the apparat-us is the rapid and economical heating of thewater in the pipe coils 1, 2, 3, and in the bowl D. The heated airascending from the stove C is deflected in its ascent by the sheet metaljacket F upon the pipe coils and subsequently concentrated toward thecenter of the bottom of the bowl D, previous to the heated airsurrounding the cylindrical shell of the bowl. The cold air supportingcombustion enters through the perforated plate as indicated by the lowerarrows, and becoming heated circulates naturally first around the pipecoils l, 2, 3, and ascends and impacts against the bottom of the bowl D,and subsequently surrounds the circular shell of thel said bowl, so thatthe heat of the heated air ascending from the electric stove C, israpidly absorbed by the water Within the pipe coils, 1, 2, 3, and thewater within .the bowl D, and a high eiiiciency oi the heat attainedthat is developed by the electric stoveC, in heating the water withinthe pipe coils 1, 2, 3, and in the water bowl D. The semi-sphericalprotuberances upon the bottom of the bowl D, is a means of increasingthe area of the bottom of the bowl D, and is also a means of causing a,corresponding heat radiation through the bottom of the bowl D.

Having described the several parts of my invention and its operation,what I claim as new and desire to secure by Letters Patent is asfollows:

In a water heater the combination of a stove C within a casing B a waterbowl D provided with a bottom formed with several semisphericaldepressions CZ, cl', and the said bowl depending within the said casing,conical spiral pipe coils located between the stove C and the water bowlwith the upper ends of the said pipe coils joined to the .wardly at thetop, so as to concentrate the bottom portion of the Water bowl, :ifaucet jacket and the metal disk supported there- 10 G communicatingwith spiral pipe coils by by, substantially es described und shown.

a connecting bush cap, e conical sheet metal In testimony whereof I havesigned my jacket F surrounding the spiral pipe coils, name to thisspecification.

5 a cup shaped metal disk above the conical J A FERRIS jacket andjoining `thereto, and sheet asbestos outwardly covering the said conicalWitnesses: i jacket and the' cup shaped metal disk, to I JOHN RoWBY,prevent heat radiation through the conical WILL R. MOONEY.

